In iOS 9.0.2 on iPad 2, there's a delay between pressing a letter on the keyboard and its appearance on the screen.

I have an iPad 2 from 2012. Seven days ago, I upgraded from iOS 8.4 to 9.0.2. Immediately I began having difficulty with the keyboard. The main issue is a delay between typing a letter and seeing it on the page. Sometimes it delays one letter at a time, printing it a few seconds after I typed it. At other times, I can type an entire word without any letters appearing on the screen, then watch as the keyboard seem to run through them one at a time, finally placing them on the screen.

It also happens with deletion. I'll press the "back" key numerous times before it takes action. After a delay of a few seconds, it then deletes the letters one by one according to how many times I had pressed the back button. Formatting keys are affected as well. For instance, the capital letter choice will stay on until after the second letter prints, creating two capital letters in a row.

This happens in Notes, Mail, and all onboard apps. It also happens on all websites using Safari and Chrome. I have no keyboards downloaded other than the standard keyboard which was pre-loaded in the computer. As far as I know, I haven't changed any settings that would cause a delay such as this. If there are settings I'm unaware of, I'd appreciate being directed to them.

I've tried the following:

• Restarting the device several times
• Downloading updated versions of all apps
• Force-closing all apps
• Deleting battery-draining apps
• Making all necessary setting adjustments to preserve battery life

Thank you for your consideration.